Window lock



J. SOSSI WINDOW LOCK Nov. 7, 1950 2 Sheets-Sheet 1 Filed Oct. 13, 1945INVE R. JOHN 505 A TTOQ/VEY Nov. 7, 1950 J. 5055] 2,528,618

WINDOW LOCK Filed Oct. 15, 1945 2 Sheets-Sheet 2 INVENTOR.

BY JOHN 50551 Patented Nov. 7, 1950 UNITED STATES PATENT 0F FICE WINDOWLOCK John Sossi, Bayside, N. Y.

Application October 13, 1945, Serial No. 622,214

The present invention relates to window locks and, more particularly, tolooks for windows of the sash frame type.

- It is an object of the present invention to provide window locks ofthe character described which are at all times completely detached fromthe window and sash frames and may be transferred for use from window towindow, as may be required.

It is another object of the present invention to provide window locks ofthe character described which may lock both upper and lower sash frames,simultaneously, and which may lock them in closed or partly openposition.

It is also an object of the present invention to provide window locks ofthe character described which are efficient and completely safe againstbreaking open and the effectiveness of which may increase with anyeffort to dislodge them.

It is a further object of the present invention to provide window locksof the character described which are of rugged and sturdy constructionand highly effective for their purposes even after repeated use.

It is a still further object of the present invention to provide windowlocks of the character described which are of simple construction, whichare economical to produce and which are simple and easy to use andmanipulate.

The foregoing and other advantages and superiorities of the window locksof the present invention will become more apparent from the embodimentsthereof shown in the accompanying drawings and from the descriptionfollowing.

It is to be understood, however, that such embodiments are shown by wayof illustration only,

2 Claims. (Cl. 292343) to make the principles and practice of theinvention more readily comprehensible, and are not presented with nyintention of limiting the present invention to their specific details.

In the drawings:

Fig. 1 is a view in side elevation of one embodiment of a window lock ofthe present invention, shown in position between an upper and a lowersash frame, and partly in vertical section to show details ofconstruction and operation;

Fig. 2 is a View in front elevation of the window lock of Fig. l,similarly shown in position between an upper and a lower sash frame;

Fig. 3 is a view similar to Fig. 1, showing a modified embodiment of thewindow lock;

Fig. 4 is a view in front elevation of the Window lock shown in Fig. 3;

Fig. 5 is a view in side elevation and partly in section of anotherembodiment of a window lock of the present invention, showing the samein operative position;

Fig. 6 is a view taken on line 66 of Fig. 5;

Fig. 7 is a top plan view of the window lock shown in Fig. 5; and

Fig. 8 is a front elevation of the same.

Referring more specifically to the accompanying drawings, the lock ofFigs. 1 and 2 com prises a pair of elongated, rigid plates, as of steelor the like, consisting of an inner plate, It, and. an outer plate, II,which are connected together by a thumb screw, [2, or a similar device.

The inner plate Ill may be provided, intermediate its ends, with a boss,!3, through which and through the plate may be provided a threadedopening, 14, for receiving and engaging the screw, l2.

The outer plate, Il, may be provided with a boss, l5, through which isformed an opening, it, which receives the reduced end, ll, of the screwl2, which end is, swaged, as at !8, to rotatablyretain plate I l on thescrew l2.

In operation, plates Ill and II may be brought close together by turningscrew l2 in the proper direction and their ends below the boss l3inserted into the space intermediate the upper and lower sash frames, l9and 20, and the screw I2 may then be turned'in the opposite direction,to space the plates It and l I, forcing them against the sash frameswhich they respectively contact, thus jamming such sash frames againstthe window frame and effectively locking them in place. When the windowis completely closed, the lock may be inserted along any portion of thehorizontal sides of the sash frames 23 and l 9;

however, when either of such sash frames is in open position, the lockmust be inserted between the vertical sides of the sash frames l9 and2t.

In order to prevent relative rotation of the plates l0 and II during theinitial locking operation, before sufiicient friction is developed tohold them against the frame sides, a pair of lugs 2| may be providedalong the edges of one of the plates, as H, which are adapted to engagethe side edges of the other plate, to prevent their relative rotation.

In the modified embodiment of Figs. 3 and 4, the plates l0 and H areconnected at their upper edges by an arcuate sprin portion 25,preferably integrally formed, which is shaped to normally press thelower ends of said plates together and which acts to increase the spacebetween them downwardly when screw [2 is turned to push them apart,whereby any effort'to dislodge the device after it is locked in positionwill tend to jam it more tightly in position and to lock the sash framesmore effectively in place.

Since in the embodiment of Figs. 3 and 4, the plates I and II areconnected at one end, lugs 2| may be eliminated. Likewise, plate U neednot be engaged upon the end of the screw l2, but such end may abutagainst plate II, to push against it when the screw I2 is turned inlocking direction.

If desired, the lower portion 26 of plate l0, may be slightly inwardlybent, to conform to the generally downwardly and inwardly sloping rearsurface of the upper horizontal frame member of the lower sash frame,and the end 21 of such plate, may be rearwardly offset in a mannor toengage the underside of such frame side.

In the embodiments of Figs. -8, the lock comprises a plate 30 set onedge and having an end 3| offset at right angles thereto, and at theother end, extending sideways, in a direction opposite to the end 3|, astud 32. The stud 32 is provided with a threaded openin 33, whichreceives and engages the thumb screw 34.

On the end of the screw 34 is mounted for free rotation a second plate35, as by means of the boss 36, formed in such plate and provided withthe opening 3'! fitting about the reduced end 38 of .the screw 34, whoseswaged end 39 retains the plate 35 in position. The plate 35 may beprovided with a rearwardly offset end portion, 40.

In operation, the embodiment of Figs. 5-8 may have the offset end 3| ofplate 36 inserted between the upright member 4| of the upper sash frameand the upright of the window frame 42, the sash frame being firstlowered slightly to facilitate insertion. The lock is then slid downalong the sash'frame l9 until the stud 32 is directly above the lowersash frame 20. The thumb screw 34 is then turned in the direction tohave the plate 35 bear and press against the spacing bar 43 generallyprovided in window frame between the upper and lower sash frames 9 and20, respectively.

It will be apparent that additional turning of screw 34' will causeplate 35 to push against the bar 43, and plate 30, by its end 3|, topull the frame away from the window frame 42, to jam it against theopposite side of the window frame and thus lock the sash frame I 9 inposition,

To lock the lower sash frame in position, either or both the stud 32 orthe member 40 may be made somewhat wider than the bar 43, so that aportion of such stud or member will overhang the upright member of thelower sash frame to prevent the latterfrom being moved upwardly.

It will be readily seen from the illustrative embodiment of the drawingsthat the lock of Figs, 5-8 may be readily used with any of the con-.ventional type of sash windows, including those provided with weatherstripping, such as 44, or with the ropes 46.

It will also be readily apparent from the foregoing that the lockingdevices of the present invention are of relatively simple and economicalconstruction, that they are easy and simple to use, that they do notrequire attachment to any part of the window or its frame and maytherefore be transferred from one window to another as occasion mayrequire, and that they are highly efficient and effective for theirpurposes.

What I claim is:

1. A window lock of the character described comprising a pair ofubstantially parallel plates having free end portions adapted to beinserted intermediate upper and lower window sashes, one of said plateshaying a threaded opening formed therein, a thumb screw vengaged'in saidopening, the second of said'plajtes being freely and fixedly mounted onthe inner end of said thumb screw, whereby the space between said platesmay be adjusted and means on one of said plates for engagin the edges ofthe other of said plates to limit the rotation of the plates relativeone another aszthe said thumb screw is turned.

2. A window lock of the character described, comprising a pair ofsubstantially parallel plates having free end portions adapted tov beinserted. intermediate an upper and lower 'window sash, one of saidplates having an internally boss formed thereon, a. thumb'screw engagedin the said boss, the second of said plates being freely and fixedlymounted on the inner end of said thumb screw, whereby the space betweensaid plate ends may be adjusted, and lugs on the side edges of saidsecond plate adapted to engage against the edges of said first plate tolimit the rotation of the plates relative to one another.

JOHN SOSSI.

REFERENCES CITED The following references are of record in the file ofthis, patent: j

UNITED STATES PATENTS Number Name Date 245,230 Seeman Aug. 2, 1881513,333 Lippincott Jan. 23, 1894 885,116 Whipple Apr. 21, 1908 911,004Gano Jan. 26, 1909 943,791 Russell Dec. 21, 1909 1,055,830 Tafe Mar. 11,1913 1,335,100 Embach' et a1 Mar. 30, 1920 2,160,460 McNaney May 30,1939

